[LLVMbugs] [Bug 7573] Should reject results and arguments in XMM registers when building with -mno-sse on x86-64

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sat Jul 31 13:01:59 PDT 2010


Daniel Dunbar <daniel at zuster.org> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
                 CC|                            |daniel at zuster.org
         Resolution|                            |FIXED

--- Comment #3 from Daniel Dunbar <daniel at zuster.org> 2010-07-31 15:01:58 CDT ---
Dale recently turned this into a backend error, at least:
ddunbar at giles:tmp$ cat t.c
double f(void) { return 0.0; }
ddunbar at giles:tmp$ clang -mno-sse -c t.c
fatal error: error in backend: SSE register return with SSE disabled
ddunbar at giles:tmp$ 

It would be nice to have that in the frontend instead of the backend, but that
seems like a very minor QOI issue.

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